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Cubes of 2 Digit Numbers Worksheet

Vedic maths trick 17: Cubes of 2-digit numbers · Set 233 · 40 sums
TalentJR

The trick (Anurupyena): Top row: a³, a²b, ab², b³ (each term is the one before × b ÷ a). Under the two middle terms write double of them, and add: a³ | 3a²b | 3ab² | b³. Combine from the right with carries.

NameDateTime takenScore ___ / 40
  1. 1.69³ =
  2. 2.22³ =
  3. 3.22³ =
  4. 4.17³ =
  5. 5.91³ =
  6. 6.43³ =
  7. 7.44³ =
  8. 8.48³ =
  9. 9.11³ =
  10. 10.85³ =
  11. 11.29³ =
  12. 12.18³ =
  13. 13.15³ =
  14. 14.25³ =
  15. 15.93³ =
  16. 16.76³ =
  17. 17.36³ =
  18. 18.36³ =
  19. 19.93³ =
  20. 20.81³ =
  21. 21.62³ =
  22. 22.21³ =
  23. 23.39³ =
  24. 24.32³ =
  25. 25.73³ =
  26. 26.68³ =
  27. 27.55³ =
  28. 28.41³ =
  29. 29.56³ =
  30. 30.39³ =
  31. 31.58³ =
  32. 32.79³ =
  33. 33.56³ =
  34. 34.81³ =
  35. 35.61³ =
  36. 36.85³ =
  37. 37.17³ =
  38. 38.69³ =
  39. 39.43³ =
  40. 40.15³ =

Answer key

  1. 328509
  2. 10648
  3. 10648
  4. 4913
  5. 753571
  6. 79507
  7. 85184
  8. 110592
  9. 1331
  10. 614125
  11. 24389
  12. 5832
  13. 3375
  14. 15625
  15. 804357
  16. 438976
  17. 46656
  18. 46656
  19. 804357
  20. 531441
  21. 238328
  22. 9261
  23. 59319
  24. 32768
  25. 389017
  26. 314432
  27. 166375
  28. 68921
  29. 175616
  30. 59319
  31. 195112
  32. 493039
  33. 175616
  34. 531441
  35. 226981
  36. 614125
  37. 4913
  38. 328509
  39. 79507
  40. 3375

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